Top "Mongodb" questions

MongoDB is a scalable, high-performance, open source, document-oriented NoSQL database.

Failed to start mongod.service: Unit mongod.service not found

I follow all the steps mention in MongoDB installation documents for Ubuntu 16.04. Steps 1: sudo apt-key adv --keyserver hkp://keyserver.ubuntu.…

mongodb ubuntu ubuntu-16.04
Uninstall mongoDB from ubuntu

I have installed MongoDB 3.0.1 following the commands in Install MongoDB Community Edition on Ubuntu on my ubuntu 14.04 64 bit system and …

mongodb ubuntu robo3t
MongoDB and "joins"

I'm sure MongoDB doesn't officially support "joins". What does this mean? Does this mean "We cannot connect two collections(tables) …

mongodb
mongodb count num of distinct values per field/key

Is there a query for calculating how many distinct values a field contains in DB. f.e I have a …

mongodb mongodb-query aggregation-framework
How to sort mongodb with pymongo

I'm trying to use the sort feature when querying my mongoDB, but it is failing. The same query works in …

python mongodb pymongo
MongoDB "root" user

Is there a super UNIX like "root" user for MongoDB? I've been looking at http://docs.mongodb.org/manual/reference/…

mongodb authentication mongodb-query authorization roles
Get the latest record from mongodb collection

I want to know the most recent record in a collection. How to do that? Note: I know the following …

mongodb mongodb-query
add created_at and updated_at fields to mongoose schemas

Is there a way to add created_at and updated_at fields to a mongoose schema, without having to pass …

node.js mongodb express mongoose
mongoError: Topology was destroyed

I have a REST service built in node.js with Restify and Mongoose and a mongoDB with a collection with …

node.js mongodb mongoose restify pm2
Mongoose: CastError: Cast to ObjectId failed for value "[object Object]" at path "_id"

I am new to node.js, so I have a feeling that this will be something silly that I have …

node.js mongodb mongoose